1022161112165 has 32 divisors (see below), whose sum is σ = 1329535316736. Its totient is φ = 751397391360.

The previous prime is 1022161112117. The next prime is 1022161112171. The reversal of 1022161112165 is 5612111612201.

It is not a de Polignac number, because 1022161112165 - 2²⁴ = 1022144334949 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8386199 + ... + 8507211.

It is an arithmetic number, because the mean of its divisors is an integer number (41547978648).

Almost surely, 2^{1022161112165} is an apocalyptic number.

It is an amenable number.

1022161112165 is a deficient number, since it is larger than the sum of its proper divisors (307374204571).

1022161112165 is a wasteful number, since it uses less digits than its factorization.

1022161112165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123389.

The product of its (nonzero) digits is 1440, while the sum is 29.

Adding to 1022161112165 its reverse (5612111612201), we get a palindrome (6634272724366).

The spelling of 1022161112165 in words is "one trillion, twenty-two billion, one hundred sixty-one million, one hundred twelve thousand, one hundred sixty-five".